Natural Slate Roof Vent - Technical Specifictions
Guaranteed actual nett free ventilation area: 10 000mm²
Spacing centres to achieve ventilation area of 5000mm²/m: 2.0m
10 000mm²/m: 1.0m
Minimum pitch: 25° unless otherwise stated
Airflow resistance when used as SVP/extract terminal: 54m³/hr (15 litres/sec) 10Pa
108m³/hr (30 litres/sec) 42Pa
216m³/hr (60 litres/sec) 162Pa